Glass-polishing apparatus



Feb. 11, 1930. c. HEUZE GLASS POLISHING APPARATUS 2 Sheets-Sheet QweniofFiled April 2 1928 Feb. 11, .1930. c. HEUZE GLAss POLI-SHING APPARATYUSFiled A ril 2, 1928 2 Sheets-Sheet 2 Patented Feb. 11, 1930 PATENTOFFICE CHARLES nnuzn, or AUVELAIS, BELGIUM GLASS-POLISHING APPARATUSThis inventionrelates to continuous glass polishing apparatus oft-hetype in which the runners travel as well as the glass, andhas for itsobject means whereby the different media required for polishing duringdifferent stages of the travel of each runner, are supplied totherunner.

In polishing glass by the above-mentioned type of apparatus, each runnerhas to. be supplied with a medium which is different for differentstages off travel of the runner. customarily, rouge and water areemployed asimedia, a mixture of rouge and: water in varying proportionsbeing. supplied at" some i stages, whilewater alone, in varyingquantity, is supplied at other stages. The invention is applicable tothe supply of any me"- dia suitable for polishing, and the term mediumor media is hereinused to mean any .2 substance or substances suppliedtothe polishing runners.

A receptacle is attached to each runner, which passes successively underthe outlets of a plurality of fixed,tanksand-receives polishingmediunrtherefrom during the travel of the runner and distributes thepolishing medium toits felts. 1 Inthe accompanyingdrawings-P Figure 1isa side view of aportion of the polishing apparatus, largelydiagrammatic;

Figure 2 isan'end view of one of the pole ishing runners, partly brokenaway; 1 V Figures 3 and 4c are views similar to Figure lshowingalternative arrangements; and

Figure 5 is a sectional elevation of one constructional form of valvefor. thedistribw tion of the polishing medium.

Referring to Figure 2, the glass rests on the tables 21, which slide onfixed guides 22 and are caused to travel by the rack 23 and pinions 24:.

The polishing runner shown in Figure 2 is of the type in which a frame 1extends across the apparatus and carries a pluralityof runner spindles2, of which one only is shown. The runner frame 1 slides on fixed guides25 and is caused to travel by chains 26 supported on rollers 27 andengaging projections 28 on the runner frame. The rotating runner spindie2isxshown carrying two runner heads 3 Application filed April 2, 1928,Serial No. 266,731, and in Great Britain May 24, 1927. V

with their felt pads 4. Since this runner spindle is of ordinary type,-no further description isdeemed tobe necessary. Refer ring to Figure 1,the runner frames 1 are shown travelling in close proximity, thedirection of travel being indicated by the arrow. A plurality of fixedtanks 5 contain the different polishing media adapted to the diflerentstages of the polishing operation, and each has its outlet pipe 6 whichmay be controlled by a valve and is kept permanently open during theoperation of the apparatus.

Attached to each runner frame 1 is a receptacle consisting of a doubleinclined trough 7, the left-hand end of the trough of one runner asviewed in F igure l, overlapping the right-hand end of the trough of thefollowing runner, so that the series of troughs 7 form a continuoustrough system.

Referring to Figure 2, theoutlet pipebiof one of the tanks 5 (whichlatterare notrepresented in the said figure) is shown immediately abovethe trough 7 here seen in end view, and attached to the runner frame lbyabracket 8. Immediately below the lowest point of the trough 7 which isthere provided with an aperture, is a funnel 9 adaptedto lead the mediumsupplied tothe trough, into a distributing valve 10,attached-tothe-runner frame by a bracket 11. Fromthe distributing valve10, a pipe runs towards each of the runner spindles on the runner frame.in the drawing three pipes are shown, one 12 running towards the runnerspindle 2 shown,

while the other two, 13 andli l, run towards similar spindles not shown.The distributing valve 10 is operated by a pulley 15,.w-hich is drivenby a belt by any convenient means. The distributing valve 10 may be of.any convenient type adapted to give passage to the medium contained inthe body of the valve, to each of the pipes, .12,- 13, 14 in turn.

A convenient form of valve is shown in Figure 5 in which a hollowspindle 29 rotated by the pulley wheel 15, leads polishing medium fromthe funnel 9 to the'interior of thevalve 10. The bottom of the valveliasholes 30 adapted to lead the polishing mee dium to the pipes 12, 18, 14(Figure 2). Attached to the spindle 29is a plate 31.which rests on thebottom of the valve and has a single hole 32. As the plate 31 turns, thepolishing medium in the valve passes through the hole 32 to the holes 30in turn.

Each pipe, as 12, delivers the medium into a circular trough 16 attachedto, and rotating with, the respective runner spindle 2 and from thistrough, pipes 17 deliver the medium to the glass.

A distributing valve, such as 10, is conveniently employed when there isa plurality of runner spindles on each runner frame, but when said framehas only a single runner spindle, it is unnecessary, and the pipe 12 canpass directly from the aperture of the trough 7 to the trough 16. Thedistributing valve can also be dispensed with in the case of two orthree runner spindles, the delivery pipes 12 etc., being all connectedto a common funnel such as 9, but in this case accuracy in thedistribution is not so well ensured.

By referring to Figure 1, it will be seen that during part of the travelof each runner, its trough 7 is not receiving a supply of medium. Duringthis part of the travel, a continuation of the supply of medium to theglass may, if desired, be secured by suitable design of the aperture inthe distributing valve 10 or of the trough or pipe outlets.

The supply of medium may, however, be made continuous from the tanks 5to the glass, by suitablyrelating the length of each trough 7 to thedistance between the tanks, as shown for example in Figure 3, where therunner frames 1 are shown spaced apart, and the length of each trough isequal to the distance between adjacent tanks.

Alternatively, the trough 7 may be made short. but capable of containingsufficient medium to maintain an eflicient supply during the travel of arunner from one tank to thernext, as in Figure 4. In this case theoutlet of each tank 5 is provided with a valve 18 which, as shown at theleft-hand end of Figure 4, is opened by a bar 19 attached to each of thetroughs 7. When there is no trough undera tank, as is the conditionrepresented at the right-hand end of Figure 4, the valve 18 of said tankis kept closed, by a weight or spring (not shown).

The devices shown and described for the automatic supply of polishingmedium are convenient for the type of polishing runner illustrated, butthese are to be regarded merely as convenient examples and aresusceptible of various modifications for this or for different runnersand apparatus without departing from the invention; for example, thepipes 6 instead of being directly connected with the tanks as shown, maybe supplied with media from the tanks under pressure.

Having described my invention, I declare that what I claim and desire tosecure by Letters Patent is 1. In continuous glass polishing apparatusin which both the glass and the polishing runners travel, thecombination with a plurality of runner frames of a plurality of fixedtanks adapted to contain polishing media, a trough attached to eachrunner frame adapted to receive the media from the tanks during itstravel and long enough to receive polishing medium for a considerablepart of the time of travel of the runner frame from one tank to thenext, and means conducting the media from each receptacle to thepolishing pads of the runner frame.

2. In continuous glass polishing apparatus in which both the glass andthe polishing runners travel, the combination with a plurality of runnerframes, of a plurality of fixed tanks adapted to contain polishingmedia, a trough attached to each runner frame adapted to receive themedia from the tanks during its travel and overlapping the trough of anadjacent runner frame so that a continuous trough is formed adapted toreceive continuous supply from each tank, and means conducting the mediafrom each receptacle to the polishing pads of the runner frame.

3. In continuous glass polishing apparatus in which both the glass andthe polishing runners travel, the combination with a plurality of runnerframes, of a plurality of fixed tanks adapted to contain polishingmedia, a receptacle attached to each runner frame adapted to receivemedia from the tanks during its travel, a valve controlling the supplyfrom each tank, means connected with the runner frame adapted to openthe valve of each tank during the passage of the receptacle under it andmeans conducting the media from each receptacle to the polishing pads ofthe runner frame.

4. In continuous glass polishing apparatus in which both the glass andthe polishing runners travel, the combination with a plurality of runnerframes and a plurality of runner spindles carried by each runner frame,of a plurality of fixed tanks adapted to contain polishing media, atrough attached to each runner frame adapted to receive the media fromthe tanks during its travel and long enough to receive polishing mediumfor a considerable part of the time of travel of the runner frame fromone tank to the next, and a valve on each runner frame adapted toreceive polishing medium from the receptacle thereon and to distributethe medium to each of the runner spindles on the frame in succession.

5. In continuous glass polishing apparatus in which both the glass andthe polishing runners travel, the combination with a plurality of runnerframes and a plurality of runner spindles carried by each runner frame,of a plurality of fixed tanks adapted to contain polishing media, atrough attached to each runner frame adapted to receive the of aplurality of fixed tanks adapted to contain polishing media, a troughattached to each runner frame adapted to receive the media from thetanks during its travel, a

valve controlling the supply from each tank,

means connected With the runner frame adapted toiopen the valve ofeachtank dur-- ing the passage of the receptacle under it, and a valve oneach runner frame adapted to receive polishing medium from thereceptacle thereon and to distribute the medium to each of the runnerspindles on the frame in succession.

In Witness whereof I have affixed my signature hereto.

CHARLES HEUZE.

